staging: rtl8723bs: tidy up some error handling in core/rtw_mlme.c

staging: rtl8723bs: tidy up some error handling in core/rtw_mlme.c

the RT_TRACE() output is not useful so we want to delete it. In this case
there is no cleanup for rtw_cleanbss_cmd() required or even possible. I've
deleted the RT_TRACE() output and added a goto unlock to show
that we can't continue if rtw_createbss_cmd() fails.

Suggested-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Fabio Aiuto <fabioaiuto83@gmail.com>
Link: https://lore.kernel.org/r/6affc9dd905f7c94a93bbd0fa706bc9026103c2e.1617545239.git.fabioaiuto83@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>